Campellolebias intermedius
Wilson J. E. M. Costa
Два новых вида икромечущих карпозубых из семейства Rivulidae из Бразилии.
Taxonomy and phylogenetic relationships among species of the seasonal, internally inseminating, South American killifish genus Campellolebias (Teleostei: Cyprinodontiformes: Rivulidae), with the description of a new species.Abstract
Campellolebias, a genus of South American annual killifishes, is diagnosed by a unique specialized structure, the pseudogonopodium, on the anterior part of the anal fin in males, which is used for internal insemination; a derived caudal skeleton morphology; an apomorphic color pattern on the ventral portion of the head in males; and a unique courtship behavior pattern in males. Four species are included, all endemic to Brazil’s southern coastal plains: C. dorsimaculatus and C. intermedius n. sp., from the rio Ribeira de Iguape basin, São Paulo; C. chrysolineatus, from northern Santa Catarina; and C. brucei, from southern Santa Catarina. A clade comprising C. intermedius, C. chrysolineatus and C. brucei is defined by the pelvic-fin bases medially separated by a short interspace, seven longitudinal rows of iridescent marks on the flank in males, and dark horizontal lines between flank scales on females. A clade comprising C. chrysolineatus and C. brucei is diagnosed by long dorsal, anal and pelvic fins in males.
Wilson J. E. M. Costa
Zootaxa 1227: 31–55 (2006)